What contributed to the construction of the berlin wall? the soviet union was losing its control in east germany. ( maybe this one) the east german economy was on the verge of collapse. (maybe this one) france and the united states had differing opinions on how to administer berlin. poor and hungry west germans were flooding into east germany.

Tori is researching for her blog post about how wearing sunblock can prevent skin cancer, and she finds a page about her topic on the united states centers for disease control website at is this a reliable site for tori’s research? yes, because it is presented by a college or university no, because it is a personal opinion about the subject yes, because it is run by a governmental organization no, because it is intended to advertise a certain product